Next Qns..
Similarly if the bus breakdown in the interchange and this
bus is from another depot. Who would cover up that timing?
Example: SBS 339A(SL 157) breakdown in Toa payoh.
Or if, 2 buses from another depot did not manage to come back to
the interchange in time and even exceeded the time that they need
to departure again.
Example: Timetable sequence.. (SBS 214B(BR 157) --> (SBS
9096R(BR 157))
SBS 214B should be back at Boon Lay at 8.30am and depart at
8.45am
SBS 9096R should be back at Boon Lay at 8.40am and depart at
8.55am
Both buses did not came back until 9.10am. Who would cover up
the timing? What do BNL route group do?
Let me give it a try. 
I did see an occurrence just recently. SBS 9807G broke down at
Tampines Interchange a few days ago and had to be towed away.
In this case, they may probably utilise the remaining buses in
service until a replacement bus comes to the rescue. The
replacement bus could be any unused bus; surprisingly, the
breakdown bus may come back to do the service.
I'm just giving the guess. Don't blame me; please correct me if I'm
wrong.
